Anas bin Malik reported,

The Messenger of Allah ﷺ saw a man being supported between his two sons.He asked, "What is the matter with him?"They replied, "He has vowed to walk."The Messenger of Allah ﷺ said, "Allah has no need for this man to torment himself." He then ordered him to ride.

حدثنا ابن أبي عدي عن حميد

عن أنس قال

رأى رسول الله ﷺ رجلا يهادى بين ابنيه قال ما هذا قالوا نذر أن يمشي فقال رسول الله ﷺ إن الله عز وجل لغني أن يعذب هذا نفسه فأمره فركب