It was narrated that Ibn ‘Umar said:“When the deceased was placed in the grave, the Prophet (ﷺ) would say: ‘Bismillah, wa ‘ala millati rasul-illah (In the Name of Allah and according to the religion of the Messenger of Allah).’” Abu Khalid said on one occasion, when the deceased was placed in the grave: “Bismillah wa ‘ala sunnati rasul- illah (In the Name of Allah and according to the Sunnah of the Messenger of Allah).” Hisham said in his narration: “Bismillah, wa fi sabil-illah, wa ‘ala millati rasul-illah (In the Name of Allah, for the sake of Allah and according to the religion of the Messenger of Allah).”

English translation · Sunan Ibn Majah