Hadith 19

Al Ayyashi – from Hareyz who said, ‘Zurara and Muhammad Bin Muslim said, ‘We said to Abu Ja’far-asws, ‘What are you-asws saying regarding the Salat during the journey, how is it, and how much is it? ’
He-asws said: ‘Allah-azwj Says: And when you go forth in the land, so there isn’t any blame on you if you shorten from the Salat [4: 101]. So, the shortening came to be in the journey as being obligatory like obligation of praying the complete during the staying’. They said, ‘But rather, Allah-azwj Mighty and Majestic Said: there isn’t any blame on you, and did not Say: “Do it! ” So how can that be obligated like what praying the complete is obligated during the staying? ’
He-asws said: ‘And hasn’t Allah-azwj Mighty and Majestic Said regarding Al Safa and Al Marwa: so whoever performs Hajj of the House or Umrah, there is no blame on him if he goes does Tawaaf of both of them; [2: 158]? Don’t you see that the Tawaaf of them both is obligated imposition, because Allah-azwj Mighty and Majestic has Mentioned it in His-azwj Book and His‑azwj Prophet-saww had done it; and like that is the shortening (of the Salat during the journey, a thing which the Prophet-saww done it, and Allah-azwj Mighty and Majestic has Mentioned it in His-azwj Book’. The both said, ‘So the one who prays four during the journey, should he repeat or not? ’
He-asws said: ‘If the Verse of the shortening (2: 158) had been recited to him and interpreted for him, so he (still) prayed four, he should repeat, and if it had not been recited to him and he did not know it, the repeating is not upon him. And the Salat during the journey, all of these are obligated as two Cycles except Al-Maghrib, for it is of three (Cycles). There isn’t any shortening in it. Rasool-Allah-saww had left it during the journey and the staying as three Cycles’’. [33]
(The book) ‘Da’aim Al Islam’ –
‘From Abu Ja’far-asws, similar to it up to his-asws words: ‘And like that is the shortening (of the Salat) during the journey. Allah-azwj Mentioned it like that in His-azwj Book, and Rasool-Allah‑saww had done it’’. [34]
Explanation (Ahadeeth only) – And the first is stronger due to a correct (Hadeeth) by Ays bin Al-Qasim (in Al-Kafi), from Abu Abdullah-asws, he said, ‘I asked him-asws about a man who prays while he is in a journey, the complete Salat. He-asws said: ‘If he was within time, let him repeat, and if the time had gone past, then no’’. And as for a correct (Hadeeth) by Abu Baseer who said, ‘I asked about a man who forgets, so he prays four Cycles during the journey. He-asws said: ‘If he remembered during that day, let him repeat, and if he did not remember until the day had gone past, repeating is not upon him’’. And it is reported by the Sheykh in the correct (Hadeeth) from Mansour Bin Hazim (in Al Tahzeeb), from Abu Abdullah-asws having said: ‘When you come to a city and determined the staying for ten (days), pray the complete Salat. If it is neglected out of ignorance, the repetition isn’t upon him’’.