It was narrated that ‘Aishah said:
“I saw the Messenger of Allah ﷺ when he was dying, and there was a bowl of water next to him. He put his hand in the vessel and wiped his face with the water, and said: ‘O Allah, help me to bear the agonies of death.’”

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يُونُسُ بْنُ مُحَمَّدٍ، حَدَّثَنَا لَيْثُ بْنُ سَعْدٍ، عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ، عَنْ مُوسَى بْنِ سَرْجِسَ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، عَنْ عَائِشَةَ، قَالَتْ رَأَيْتُ رَسُولَ اللَّهِ ﷺ وَهُوَ يَمُوتُ وَعِنْدَهُ قَدَحٌ فِيهِ مَاءٌ فَيُدْخِلُ يَدَهُ فِي الْقَدَحِ ثُمَّ يَمْسَحُ وَجْهَهُ بِالْمَاءِ ثُمَّ يَقُولُ " اللَّهُمَّ أَعِنِّي عَلَى سَكَرَاتِ الْمَوْتِ " .