Whose Funeral Salah Was Offered First By The Beloved Prophet صلی اللہ تعالی علیہ وسلم ?

The funeral Ṣalāĥ was first initiated in the era of Sayyidunā Ādam عَـلٰى نَبِـيِّـنَا وَعَـلَيْهِ الصَّلٰوةُ وَالسَّلَام, angels recited four ‘Takbīrāt’ in the blessed funeral prayer of Sayyidunā Ādam عَـلٰى نَبِـيِّـنَا وَ عَـلَيْـهِ الـصَّلٰوة ُ وَالـسَّلَام In Islam, the order for the funeral Ṣalāĥ becoming mandatory (Wājib) was revealed in Madīnaĥ Munawwaraĥ زَادَھَـا الـلّٰـهُ شَـرَفًـا وَّ تَـعۡـظِیۡـمًا. Sayyidunā As’ad Bin Zurāraĥ رَضِىَ اللهُ تَعَالٰی عَـنْهُ passed away at the end of the ninth month after Ḥijraĥ and he رَضِىَ اللهُ تَعَالٰی عَـنْهُ was the first companion whose funeral Ṣalāĥ was performed by the Holy Prophet صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم.

(Derived from: Fatāwā Razawiyyaĥ - referenced, vol. 5, pp. 375-376)