وعن ابن مسعود رضي الله عنه
قال: صليت مع النبي صلى الله عليه وسلم، ليلة، فلم يزل قائمًا حتى هممت بأمر سوء. قيل: ما هممت؟ قال: هممت أن أجلس وأدعه
One night I joined the Prophet (sallallahu alayhi wa sallam) in his (optional) Salat. He (sallallahu alayhi wa sallam) prolonged the Qiyam (standing) so much that I made up my mind to commit an act of wrong. He was questioned: “What did you intend to do?” He replied: “I intended to sit down and stop following him (in Salat).”.
Riyad as-Salihin 1174, Book 9, The Book of Virtues, Hadith 184. 1 min read