Abu Zayd Usāmah ibn Zayd ibn Ḥārithah—the freedman of the Messenger of Allah ﷺ, his beloved and the son of his beloved—may Allah be pleased with them both, said:
The Prophet’s daughter sent word: “A son of mine is on the verge of death (1); please come and witness him.” He sent his greetings of peace back to her and said, “To Allah belongs what He takes and to Him belongs what He gives; everything with Him has an appointed term. So let her be patient and seek her reward” (2). She then adjured him to come in person, so he rose and went accompanied by Saʿd ibn ʿUbādah, Muʿādh ibn Jabal, Ubayy ibn Kaʿb, Zayd ibn Thābit, and other men—may Allah be pleased with them.
The child was brought to the Messenger of Allah ﷺ; he seated him on his lap while the boy’s breath was rattling (taqaffaʿa). The Prophet’s eyes overflowed with tears (3). Saʿd asked, “Messenger of Allah, what is this?” He replied, “This is mercy that Allah has placed in the hearts of His servants.” In another wording: “in the hearts of whomever He wills among His servants. Allah only shows mercy to His merciful servants.” Agreed upon.
The meaning of taqaffaʿa is that the breathing was trembling and convulsing.

Suhayb, may Allah be pleased with him, reported that the Messenger of Allah ﷺ said:
“There was a king among those who lived before you who had a magician. When the magician grew old, he said to the king, ‘I have grown old; send me a boy so I can teach him magic.’ The king sent him a boy to instruct. On the boy’s route there was a monk (4); the boy would sit with him and listen to his words, and he was impressed by them. Whenever he went to the magician he would pass by the monk and sit with him, and when he finally reached the magician, the latter would beat him. He complained about this to the monk, who told him, ‘When you fear the magician, say: “My family kept me.” And when you fear your family, say: “The magician kept me.”’
While he was in that state he came upon a huge beast that had blocked people’s path, so he said, ‘Today…"