Sunan an-Nasa'i, 1052

It was narrated from Muhammad bin Maslamah that:When the Messenger of Allah (ﷺ) stood to offer a voluntary prayer, he would say when he bowed: "Allahumma laka rak'atu wa bika amantu wa laka aslamtu wa alayka tawwakaltu, anta Rabbi, khasha'a sam'i wa basri wa lahmi wa dammi wa mukhi wa 'asabi Lillahi Rabbil-'Alamin ( O Allah, to You I have bowed, in You I believe, to You I have submitted and in You I put my trust. You are my Lord. My hearing, my sight, my flesh, my blood, my brain and my sinews are humbled before Allah, the Lord of the Worlds)

Rapporté par Muhammad bin Maslamah : Quand le Messager d’Allah (ﷺ) se levait pour une prière surérogatoire, il disait en s’inclinant : « Allahumma laka rak‘atu, wa bika amantu, wa laka aslamtu, wa ‘alayka tawakkaltu, anta Rabbi, khasha‘a sam‘i wa basri wa lahmi wa dammi wa mukhi wa ‘asabi Lillahi Rabbil-‘Alamin » (« Ô Allah, c’est devant Toi que je m’incline, en Toi je crois, à Toi je me soumets et en Toi je place ma confiance. Tu es mon Seigneur. Mon ouïe, ma vue, ma chair, mon sang, mon cerveau et mes nerfs s’humilient devant Allah, le Seigneur des mondes »)