Guidance from The Prophet (saws)
Hadrat Abdullah Ibn Masud (r.a.) said: ‘The Messenger of Allah (saws) said, "He who (on befalling a calamity) slaps his cheeks, tears his clothes and follows the ways and traditions of the Days of Ignorance is none of us.''’
Related by Bukhari and Muslim. Hadith quoted from Riyad-us-Saliheen (Chapter 302, Hadith # 1658)
It simply does not befit the character of a believer to wail, or lament, or slap one’s cheeks, or chest, or tear one’s clothes, etc. when afflicted by a calamity as a trial from their Lord. One should recognize that their affliction is no more than a trial from their Lord, accept their affliction with patience, and declare: ‘Inna lillahe wa inna ilayhe rajeoon’ (To Allah we belong and to Him is our return).
Such is the act of wailing and lamenting when afflicted by a calamity hated in the Sight of Allah Subhanah, that the Messenger of Allah (saws) declared wailing as a tradition of the ‘days of ignorance’, and warned that one who wails at an affliction is ‘none of us’ (not a true believer)!