From Sahih Muslim (Hadith 742):
Jabir b. Abdullah reported:A delegation of the Thaqif said to the Messenger of Allah (ﷺ): Our land is cold; what about our bathing then? He (the Holy Prophet) said: I pour water thrice over my head. Ibn Salim in his narration reported:" The delegation of the Thaqif said: Messenger of Allah
Reference: Muslim 742