Sunan Abi Dawud 2542
سنن أبي داود#2542Da'ifNarrated Utbah ibn AbdusSulami: Utbah heard the Messenger of Allah (ﷺ) say: Do not cut the forelocks, manes, or tails of horse, for their tails are their means of driving flies, their manes provide them with warmth, and blessing is tide to their forelocks
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiDaif
In-book reference: 15:66