عن أبى جحيفة وهب بن عبد الله رضى الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم‏:‏ ‏"‏ لا آكل متكئاً‏"‏.‏‏‏((‏رواه البخارى‏)‏‏)‏‏

Anas (May Allah be pleased with him) reported

I saw Messenger of Allah (ﷺ) eating some dates while sitting on his buttocks, with his legs raised.[Muslim].