[Machine] So, when he bow down and prostrated, he would say "Allahu Akbar" (Allah is the Greatest). I mentioned this to Ibn Abbas and he said, "Do you not know that this is the Sunnah of the Messenger of Allah ﷺ ?"
فَكَانَ إِذَا رَكَعَ وَإِذَا سَجَدَ كَبَّرَ قَالَ فَذَكَرْتُ ذَلِكَ لِابْنِ عَبَّاسٍ فَقَالَ لَا أُمَّ لَكَ أَوَلَيْسَ تِلْكَ سُنَّةَرَسُولِ اللهِ ﷺ؟