Self-composure during tribulation
Usamah bin Zaid (radi Allahu anhu) reported: A daughter of the Prophet (sal Allahu alaihi wa sallam) sent a message to him that her son was at his last breath, and requested him to come to her. The Prophet (sal Allahu alaihi wa sallam) sent back the informer saying: “To Allah belongs what He takes and what He gives, and everything has a limited period (in this world). So ask her to endure patiently, and expect the reward of Allah.”
[Sahih Al-Bukhari and Muslim]
This Hadith exhorts us to keep self-composure at a moment of tribulation. The Prophet’s daughter mentioned in this Hadith is Zainab (radi Allahu anha) as other ahadith mention.
And Allah knows best!