The Albaani Site

مَنْ سَرَّهُ أَنْ يَسْتَجِيْبَ اللهُ لَهُ عِنْدَ الشَّدَائِدِ وَالْكَرْبِ فَلْيُكْثِرِ
الدُّعَاءَ فِي الْرَّخَاْءِ

From Abu Hurairah that the Prophet صلى الله عليه وسلم said, “Whoever would be delighted by Allaah responding to him in times of hardship and distress, then let him supplicate abundantly when at ease.”

And from Aaishah, may Allaah be pleased with her, that the Messenger صلى الله عليه وسلم would remember Allaah, the Most High, at all times.

Silsilah | 593 &  406