Hadith 1:

عن أبي هاشم قال دخلت على أبي محمد (ع) وكان يكتب كتاباً فحان وقت الصلاة الأولى فوضع الكتاب من يده وقام (ع) الى الصلاة, فرأيت القلم يمر على باقي القرطاس من الكتاب ويكتب حتى انتهى الى آخره, فخررت له ساجداً, فلما انصرف من الصلاة أخذ القلم بيده وأذن للناس.

Narrated from Abu Hashim,

"I came to Imam Hasan al-Askari (ع) and the Imam was writing a letter. When it was time for Salaat/Prayer, He (ع) put the paper down from His hand and stood up for prayer. And I saw the pen moving over the paper & writing on the paper till it reached its end. So I went down into prostration to Him (out of respect or thanks?). When the Imam (ع) finished praying, He took the pen by His hand and gave permission for people to enter."

[Source: Uyoon al-Mojizaat, Pg. 134] 

Hadith 2:

عَلِيُّ بْنُ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ إِسْمَاعِيلَ الْعَلَوِيِّ قَالَ حُبِسَ أَبُو مُحَمَّدٍ عِنْدَ عَلِيِّ بْنِ نَارْمَشَ وَهُوَ أَنْصَبُ النَّاسِ وَأَشَدُّهُمْ عَلَى آلِ أَبِي طَالِبٍ وَقِيلَ لَهُ افْعَلْ بِهِ وَافْعَلْ فَمَا أَقَامَ عِنْدَهُ إِلا يَوْماً حَتَّى وَضَعَ خَدَّيْهِ لَهُ وَكَانَ لا يَرْفَعُ بَصَرَهُ إِلَيْهِ إِجْلالاً وَإِعْظَاماً فَخَرَجَ مِنْ عِنْدِهِ وَهُوَ أَحْسَنُ النَّاسِ بَصِيرَةً وَأَحْسَنُهُمْ فِيهِ قَوْلاً

Narrated that Abu Muhammad Imam Hasan Askari (ع) was imprisoned under the supervision of Ali ibn Narmasha who was one of the extremely hostile men towards the descendants of Abu Talib (ع). The Imam had stayed with him only for a day and the guard who was hostile towards him placed his cheek in submission to Him & he would not raise his eyes towards him due to honor/esteem/respect and greatness. And the Imam came out from his prison in such a state that the guard had turned into having the highest degree of understanding of Him and would speak the best words about Him.

[Source: al-Kafi, Vol. 1, Ch. 122, Hadith. 8]

Hadith 3:

أَبُو هَاشِمٍ قَالَ سَمِعْتُ أَبَا مُحَمَّدٍ يَقُولُ‌ إِنَّ فِي الْجَنَّةِ بَاباً يُقَالُ لَهُ الْمَعْرُوفُ لَا يَدْخُلُهُ إِلَّا أَهْلُ بَيْتِ الْمَعْرُوفِ فَحَمِدْتُ اللَّهَ تَعَالَى فِي نَفْسِي وَ فَرِحْتُ مِمَّا أَتَكَلَّفُهُ مِنْ حَوَائِجِ النَّاسِ فَنَظَرَ إِلَيَّ أَبُو مُحَمَّدٍ ع فَقَالَ نَعَمْ قَدْ عَلِمْتُ مَا أَنْتَ عَلَيْهِ وَ أَنَّ أَهْلَ الْمَعْرُوفِ فِي الدُّنْيَا أَهْلُ الْمَعْرُوفِ فِي الْآخِرَةِ جَعَلَكَ اللَّهُ مِنْهُمْ يَا أَبَا هَاشِمٍ وَ رَحِمَكَ

Narrated from Abu Hashim that Abu Muhammad Imam Hasan Askari (عليه السلام) said,

"There is a gate in Heaven called al-Maroof (Kindness), and no one will enter it except the people of kindness."

I (i.e. Abu Hashim, the narrator) thanked Allah within myself and rejoiced for what I had taken upon myself of fulfilling the needs of the people.

Abu Muhammad Imam Hasan al-Askari (عليه السلام) looked at me and said, "Yes I know of what you do. And surely the people of kindness in this world will also be known as the people of kindness in the hearafter. May Allah make you amongst them and have mercy upon you O Abu Hashim."

[Source: al-Manaqib, ibn Shahr Ashoob, Vol. 4, Pg. 432]

Hadith 4:

حدثنا علي بن عبد الله الوراق قال: حدثنا سعد بن عبد الله قال: حدثني موسى بن جعفر بن وهب البغدادي أنه خرج من أبي محمد عليه السلام توقيع: " زعموا أنهم يريدون قتلي ليقطعوا هذا النسل وقد كذب الله عز وجل قولهم والحمد لله

Narrated by Musa bin Jafar bin Wahab al-Baghdadi that the following letter (Tawqee) came from Abu Muhammad Imam Hasan Askari (عليه السلام)"

"They thought that they wanted to kill me in order to cut off this offspring (i.e. Imamat), and surely Allah (عز وجل) has disproved what they said, and all praise be to Allah."

[Source: Kamal al-Deen, Shaikh Sadooq, Vol. 1, Pg. 435]

Hadith 5:

مُحَمَّدُ بْنُ الْحَسَنِ قَالَ‌ كَتَبْتُ إِلَيْهِ أَشْكُو الْفَقْرَ ثُمَّ قُلْتُ فِي نَفْسِي أَ لَيْسَ قَدْ قَالَ أَبُو عَبْدِ اللَّهِ الْفَقْرُ مَعَنَا خَيْرٌ مِنَ الْغِنَى مَعَ عَدُوِّنَا وَ الْقَتْلُ مَعَنَا خَيْرٌ مِنَ الْحَيَاةِ مَعَ عَدُوِّنَا فَرَجَعَ الْجَوَابُ إِنَّ اللَّهَ عَزَّ وَ جَلَّ يَخُصُّ أَوْلِيَاءَنَا إِذَا تَكَاثَفَتْ ذُنُوبُهُمْ بِالْفَقْرِ وَ قَدْ يَعْفُو عَنْ كَثِيرٍ مِنْهُمْ وَ هُوَ كَمَا حَدَّثَتْكَ نَفْسُكَ الْفَقْرُ مَعَنَا خَيْرٌ مِنَ الْغِنَى مَعَ عَدُوِّنَا وَ نَحْنُ كَهْفُ مَنِ الْتَجَأَ إِلَيْنَا وَ نُورٌ لِمَنِ اسْتَضَاءَ بِنَا وَ عِصْمَةٌ لِمَنِ اعْتَصَمَ بِنَا مَنْ أَحَبَّنَا كَانَ مَعَنَا فِي السَّنَامِ الْأَعْلَى وَ مَنِ انْحَرَفَ عَنَّا مَالَ إِلَى النَّارِ

Muhammad bin al-Hasan said, I wrote to Imam Hasan ibn Ali al-Askari (عليه السلام) complaining about poverty.

I (the narrator) then said to myself, "Has not Aba AbdAllah (عليه السلام) said, that poverty while being with Us is better than wealth while being with our enemies and being killed along with Us is better than having a life along with our enemies"

The reply came from Imam Hasan Askari (عليه السلام), "Indeed Allah (عز وجل) bestows poverty upon Our friends when their sins become many and surely Allah forgives many of the sins. And it's like what you said to yourself, that poverty while being with Us is better than wealth while being with our enemies. And we are a protective cave for those who take refuge with Us and Light for those who seek enlightenment from Us and Protection for those who seek Our Protection. The one who loves Us will be along with Us in the elevated places and the one who turns away from Us will incline to the fire."

[Source: Manaqib – Ibn Shehr Aashoob, Vol. 3, Pg. 534]

Hadith 6:

In the detailed narration describing the meeting of Ibrahim ibn Mahziyar with Imam Mahdi (عليه السلام),

Ibrahim ibn Mahziyar had a ring which was given to him by Imam Hasan Askari (عليه السلام) and on that ring was written – "Ya Allah, Ya Muhammad, Ya Ali"

ثُمَّ قَرَأَ كِتَابَتَهُ فَكَانَتْ يَا اللَّهُ يَا مُحَمَّدُ يَا عَلِيُّ

In the same narration Imam Mahdi (عليه السلام) says that His father Imam Hasan Askari (عليه السلام) said to him describing the events after the reappearance (zuhoor):

"The infant in the cradle will wish he could get up and come to you."

يَوَدُّ الطِّفْلُ فِي الْمَهْدِ لَوِ اسْتَطَاعَ إِلَيْكَ نُهُوضاً

[Source: Kamal al-Deen, Shaikh Sadooq, Vol. 2, Pg. 445 & 450]

Hadith 7: Dont feel shy in asking the Imam for your needs

إِسْحَاقُ قَالَ حَدَّثَنِي أَبُو هَاشِمٍ الْجَعْفَرِيُّ قَالَ شَكَوْتُ إِلَى أَبِي مُحَمَّدٍ (عَلَيْهِ السَّلام) ضِيقَ الْحَبْسِ وَكَتَلَ الْقَيْدِ فَكَتَبَ إِلَيَّ أَنْتَ تُصَلِّي الْيَوْمَ الظُّهْرَ فِي مَنْزِلِكَ فَأُخْرِجْتُ فِي وَقْتِ الظُّهْرِ فَصَلَّيْتُ فِي مَنْزِلِي كَمَا قَالَ (عَلَيْهِ السَّلام) وَكُنْتُ مُضَيَّقاً فَأَرَدْتُ أَنْ أَطْلُبَ مِنْهُ دَنَانِيرَ فِي الْكِتَابِ فَاسْتَحْيَيْتُ فَلَمَّا صِرْتُ إِلَى مَنْزِلِي وَجَّهَ إِلَيَّ بِمِائَةِ دِينَارٍ وَكَتَبَ إِلَيَّ إِذَا كَانَتْ لَكَ حَاجَةٌ فَلا تَسْتَحْيِ وَلا تَحْتَشِمْ وَاطْلُبْهَا فَإِنَّكَ تَرَى مَا تُحِبُّ إِنْ شَاءَ الله.

Narrated from Abu Hashim al-Jafari,

"I complained to Abu Muhammad Imam Hasan Askari (عليه السلام) about the constraining cell of the prison and the weight of the shackles on me. He wrote back in reply to me. “Today you will pray your Zuhr prayers in your own home."

I then was released that day and prayed the Zuhr prayer in my own home as the Imam (عليه السلام) had said.”

And I was under financial constraints and I decided to ask the Imam for a certain number of Dinars in writing, but I felt shy.

When I went to my house, the Imam (عليه السلام) sent me a hundred Dinars and wrote to me saying, "If you need anything do not feel embarrassed or ashamed/shy. Ask for it and you will find it as you wish, by the will of Allah."

[Source: al-Kafi, Vol. 1, Pg. 503]