Jami` at-Tirmidhi 1538
جامع الترمذي#1538SahihNarrated Abu Hurairah:That the Messenger of Allah (ﷺ) said: "Do not vow, for the vows does not prevent what is decreed at all, and it only causes the miser to spend (of his wealth)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Bukhari And Muslim
In-book reference: 20:17