Upon the death of Uthman Ibn Saeed Amari

قال عبد الله بن جعفر الحميريُّ : وخرج التوقيع إلى الشيخ أبي جعفر محمّد ابن عثمان العمريِّ في التعزية بأبيه رضي الله عنهما في فصل من الكتاب « إنّا لله وإنّا إليه راجعون تسليماً لأمره ورضاء بقضائه ، عاش أبوك سعيداً ومات حميداً فرحمه الله وألحقه بأوليائه ومواليه عليهم‌السلام ، فلم يزل مجتهداً في أمرهم ، ساعياً فيما يقرّبه إلى الله عزَّ وجلَّ وإليهم ، نضّر الله وجهه وأقاله عثرته 

وفي فصل آخر : « أجزل الله لك الثواب وأحسن لك العزاء رزئت ورزئنا وأوحشك فراقه وأوحشنا فسره الله في منقلبه ، وكان من كمال سعادته أن رزقه الله ولدا مثلك يخلفه من بعده ويقوم مقامه بأمره ويترحم عليه

A holy letter [from Imam al-Qaim (atfs)] came out to Shaykh Abu Ja’far Muhammad Ibne Uthman Ibne Saeed Amari consoling him for his father. One section of the letter read:

"We belong to Allah and to Him do we return, submit to His command and are pleased with His destiny. Your father lived fortuitously and died praiseworthy. May Allah have mercy on him and take him to the company of his Imams and his masters, peace be with them. He was always dedicated to their (i.e. the Imam's) cause and diligent in what would take him near Allah (swt) and the Imams. May Allah beautify his visage and forgive him his shortcomings."

Another segment of the letter reads:

"May Allah increase upon you the reward and may He adorn for you the grieving. This tragedy has struck you and has struck us. His separation has left you in fright and has left us in fright. May Allah please him in his eternal abode. Of the best of his fortuitousness was that Allah gave him a son like you, to stay behind him and take his place and perform his task and seek mercy for him."

[Source: Kamal al-Deen, Shaikh Sadooq, Chapter. 45, Hadith. 41]