Sahih al-Bukhari #4806 · Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))

Sahih al-BukhariAl-Awwam
Sahih al-Bukhari · Book 65 · Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
Sahih al-Bukhari · كتاب 65 · كتاب التفسير
I asked Muhajid regarding the prostration in Surat Sa'd. He said, "Ibn 'Abbas was asked the same question and he said, 'Those are they (the prophets) whom Allah had Guided. So follow their guidance." (6.90) Ibn 'Abbas used to perform a prostration (on reading this Sura)
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنِ الْعَوَّامِ، قَالَ سَأَلْتُ مُجَاهِدًا عَنِ السَّجْدَةِ، فِي ص قَالَ سُئِلَ ابْنُ عَبَّاسٍ فَقَالَ ‏{‏أُولَئِكَ الَّذِينَ هَدَى اللَّهُ فَبِهُدَاهُمُ اقْتَدِهْ‏}‏‏.‏ وَكَانَ ابْنُ عَبَّاسٍ يَسْجُدُ فِيهَا‏.‏
Reference : Sahih al-Bukhari 4806In-book reference : Book 65, Hadith 328