من لا يحضره الفقيه, volume 1, page 441

Hadith.1280 - Abd al-Rahman bin al-Hajjaj asked Imam Jafar ibn Muhammad Al-Sadiq (as) about a man who owns lands that are close to one another and he travels between them. Should he complete his prayers or shorten them? Imam (as) replied: "He should complete [his prayers]."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.1281 - Isma'il bin Abi Ziyad narrated from Ja'far bin Muhammad (as) from his father (as) who said: "There are seven who do not shorten their prayers: the tax collector who travels for the purpose of collecting taxes, the leader who moves around within his jurisdiction, the trader who travels between markets for commerce, the shepherd, the Bedouin, the one who seeks places of rainfall and vegetation growth, and the man who hunts for the purpose of worldly amusement, and the bandit who blocks roads." Ismail ibn Abi Ziyad narrated from Ja'far ibn Muhammad, from his father, peace be upon them, who said: "Seven do not fall short in prayer: the tax collector who goes about his collection, the prince who manages his rule, the merchant who moves from market to market, the shepherd, the Bedouin, the one who seeks places of rain and the growth of trees, the man who hunts for the sake of worldly enjoyment, and the warrior who roams the paths."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.1282 - Musa ibn Bakr narrated from Zurarah from Imam Muhammad ibn Ali Al-Baqir (as) who said: "If a man forgets a prayer or prays it without purification, whether he is at home or traveling, and then remembers it, he must make up the prayer that is due, neither adding to it nor subtracting from it. If he forgot four rak'ahs (units of prayer), he should make up four rak'ahs when he remembers, regardless of whether he is traveling or at home. And if he forgot two rak'ahs, he should perform two rak'ahs when he remembers, whether traveling or at home."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.