The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 200 (#Ḥadīth #200)

200 - وَبِهذَا الإِسناد عَنِ الرِّضا عَنْ أَبِيهِ a.sُقالَ: رَأى الصَّادِق a.sُ رَجُلاً قَد اشتَدَّ جَزعَه عَلَى وُلْدِه فَقالَ: يا هذا أَجَزعَت لِلمُصيبَة الصُّغرى وَغَفَلتَ عَن المُصيبَةِ الكُبرى لَوْ كُنْتَ لَمّا صارَ إِلَيْهِ وَلَدُكَ مُستَعِدّاً لَمَا اشتَدَّ جَزعَك عَلَيْهِ فَمُصابِكَ بِتَركِك الاِستِعدادَ لَهُ أَعْظَمُ مِن مُصابِكَ بِوَلَدِكَ.

31-200 According to the same documentation, it is narrated that Ar-Ridha’ quoted on the authority of his father , “Once As-Sadiq saw a man who was seriously upset over the death of his son. The Imam told him, ‘Are you so upset about such a minor calamity and have you forgotten about the major calamity? If you had prepared yourself earlier for the loss of your son you would not have become so upset now. This lack of preparedness for the loss of your son is worse than his actual loss.’”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).