Ash-Sharid bin Suwaid (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) passed by me when I was sitting with my left hand behind my back and leaning on my palm. On seeing me in this posture he said, "Do you sit like those upon whom the Wrath of Allah has descended?"[Abu Dawud].
App reference: Book 5, Hadith 11
Arabic/English book reference: Book 5, Hadith 824