Jami` at-Tirmidhi 3382
جامع الترمذي#3382HasanAbu Hurairah [may Allah be pleased with him] narrated that:The Messenger of Allah said: “Whoever wishes that Allah would respond to him during hardship and grief, then let him supplicate plentifully when at ease.”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan
Al-AlbaniHasan
Zubair Ali ZaiHasan
In-book reference: 48:13