Sahih al-Bukhari
Fighting for the Cause of Allah (Jihaad)
كتاب الجهاد والسير
Chapter 198: The performance of Salat on returning from a journey
الصَّلاَةِ إِذَا قَدِمَ مِنْ سَفَرٍ
I was on a journey in the company of the Prophet (ﷺ) and when we reached Medina, he said to me, "Enter the Mosque and offer two rak`at."
Whenever the Prophet (ﷺ) returned from a journey in the forenoon, he would enter the Mosque and offer two rak`at before sitting.
Chapter 199: Taking meals on arrival (from a journey)
الطَّعَامِ عِنْدَ الْقُدُومِ
Ibn ‘Umar used to present meals to the one who used to visit him (on returning from a journey).
Jabir bin `Abdullah said, "When Allah's Messenger (ﷺ) arrived at Medina, he slaughtered a camel or a cow." Jabir added, "The Prophet (ﷺ) bought a camel from me for two Uqiyas (of gold) and one or two Dirhams. When he reached Sirar, he ordered that a cow be slaughtered and they ate its meat. When he arrived at Medina, he ordered me to go to the Mosque and offer two rak`at, and weighed (and gave) me the price of the camel."
Once I returned from a journey and the Prophet (ﷺ) said (to me) "Offer two rak`at." (Sirar is a place near Medina).