Sayyiduna Fadalah bin Ubayd (may Allah be pleased with him) narrated: Whenever the Messenger of Allah (peace and blessings be upon him) halted at a stopping place on a journey or entered his house, he would not sit down without first praying two rak'ahs.
Hadith Referenceالمعجم الكبير للطبراني / باب الفاء / 15861