Hadith 3:4
Abu Sa’id and Abu Hurairah (RAA) narrated that the messenger of Allah (ﷺ) said:
“Remind those who are on their death bed of the Shahadah “La'Ilaha illall-ah.” (for them to say it, hoping it will be their last words)”
وَعَنْ أَبِي سَعِيدٍ وَأَبِي هُرَيْرَةَ رَضِيَ اَللَّهُ عَنْهُمَا قَالَا: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ لَقِّنُوا مَوْتَاكُمْ لَا إِلَهَ إِلَّا اَللَّهُ } رَوَاهُ مُسْلِمٌ, وَالْأَرْبَعَةُ
Original Reference: Bulugh al-Maram 535, 536