Abdul-Rahman bin Abu Layla reported,

A man from among the companions of the Prophet ﷺ reported that he heard the Prophet ﷺ mention a hadith, in which he said, "The Messenger of Allah ﷺ said, 'The angels of the night and the angels of the day gather together at the Asr prayer and the Fajr prayer. The angels of the day ascend at the Asr prayer, leaving the angels of the night with you, and the angels of the night ascend at the Fajr prayer, leaving the angels of the day with you. They say, We came to them while they were praying, and we left them while they were praying, and we left among them a man whom no good ever touched, nor any trial, without his knowing that it was from You. Allah says, Test My servant, or, Increase My servant.'"Sufyan said, "I do not know with which of the two He began."He continued, "So they test him. Then He says, Test him further, and they test him. Then He says, Test him further. Then He says, Test him, though He knows best. They say, The trial has reached its end, our Lord. He says, Increase him, and he is increased. Then He says, Increase him, and he is increased. Then He says, Increase him, and he is increased. Then He says, Increase him, though He knows best. They say, The increase has reached its end, our Lord. He says, How did you leave My servant in trial, and how did you see him in ease? They reply, Our Lord, the most patient of servants and the most grateful. He says, Record My servant among those who do not alter or change, until he meets Me.'"

عن عبد الرحمن بن أبي ليلى يقول

حدثنا فلان رجل من أصحاب النبي ﷺ أنه سمع النبي ﷺ يقول: فذكر حديثا، قال: وقال رسول الله ﷺ: تجتمع ملائكة الليل وملائكة النهار في صلاة العصر وصلاة الصبح، فتصعد ملائكة النهار في صلاة العصر، وتبقى فيكم ملائكة الليل، وتصعد ملائكة الليل في صلاة الصبح، وتبقى فيكم ملائكة النهار، ويقولون: أتيناهم وهم يصلون، وتركناهم وهم يصلون، وتركنا فيهم رجلا لم يصبه خير قط، ولا بلاء قط، إلا علم أنه منك، فيقول: ابتلوا عبدي، أو زيدوا عبدي. قال سفيان: لا أدري بأيتهما بدأ، قال: فيبتلونه، ثم يقول: ابتلوه فيبتلى، ثم يقول: ابتلوه ثم يقول: ابتلوا وهو أعلم، فيقولون: انتهى البلاء أي رب، فيقول: زيدوه، فيزداد، ثم يقول: زيدوه، فيزداد، ثم يقول: زيدوه، فيزداد، ثم يقول: زيدوه وهو أعلم، فيقولون: انتهى المزيد أي رب، فيقول: كيف تركتم عبدي في البلاء، وكيف رأيتموه في الرخاء؟ فيقولون: أي رب، أصبر عبد وأشكره، فيقول: اكتبوا عبدي ممن لا يبدل ولا يغير، حتى يلقاني.