Yahya bin Habib bin Arby يحيى بن حبيب بن عربي · The Book of Forgetfulness (In Prayer)

The Prophet (ﷺ) led them in prayer and forgot (how many rak'ahs he had prayed), then he prostrated twice, then he said the salam.

"The Messenger of Allah (ﷺ) took my hand and said: 'I love you, O Mu'adh!' I said: 'And I love you, O Messenger of Allah (ﷺ).' Then the Messenger of Allah (ﷺ) said: 'Never forget to say in every prayer: Rabbi a'inni 'ala dhikrika wa shukrika wa husni 'ibadatik (My Lord, help me to remember You, give thanks to You and worship You well.)"

The Prophet (ﷺ) said the salam, then he spoke, then he performed two prostrations of forgetfulness.

Ka'b swore to him: "By Allah (SWT) Who parted the sea for Musa, we find in the Tawrah that when Dawud, the Prophet of Allah, finished his prayer, he would say: 'Allahumma Aslih li dinya-lladhi ja'altahu li ismatan wa aslih li dunyaya-llati ja'alta fiha ma'ashi, Allahumma inni a-udhu biridaka min sakhatik wa a-udhu bi'afwika min naqmatika wa a-udhu bika mink, la mani' lima a'taita wa la mu'tia lima mana'ta wa la yanfa'u dhal-jaddi minka al-jadd (O Allah, set straight my…