It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that when the Prophet (peace and blessings be upon him) would lie down on his bed, he would supplicate: «قِنِيعَذَابَكَيَوْمَتَجْمَعُعِبَادَكَ» "O Lord! Save me from the punishment of the Day when You will gather Your servants."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 3742
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف لانقطاعه، أبو عبيدة لم يسمع من أبيه عبدالله.