(Imām Bukhārī narrates): Musaddad narrated the hadith to us, he said: Yahya narrated the hadith to us, from Isa bin Hafs bin Asim, he said: My father narrated the hadith to me, he heard Hazrat Ibn Umar (Allāh be pleased with them both) narrating this:

I have kept the company of the Messenger of Allāh ﷺ, he ﷺ did not offer more than two rak'ahs (obligatory) while travelling, and likewise Hazrat Abu Bakr, Hazrat Umar, and Hazrat Uthman (Allāh be pleased with them).