حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، عَنْ سُفْيَانَ، عَنْ أَبِي إِسْحَاقَ، عَنْ حَارِثَةَ، قَالَ جَاءَ نَاسٌ مِنْ أَهْلِ الشَّامِ إِلَى عُمَرَ رَضِيَ اللَّهُ عَنْهُ فَقَالُوا إِنَّا قَدْ أَصَبْنَا أَمْوَالًا وَخَيْلًا وَرَقِيقًا نُحِبُّ أَنْ يَكُونَ لَنَا فِيهَا زَكَاةٌ وَطَهُورٌ قَالَ مَا فَعَلَهُ صَاحِبَايَ قَبْلِي فَأَفْعَلَهُ وَاسْتَشَارَ أَصْحَابَ مُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَفِيهِمْ عَلِيٌّ رَضِيَ اللَّهُ عَنْهُ فَقَالَ عَلِيٌّ هُوَ حَسَنٌ إِنْ لَمْ يَكُنْ جِزْيَةً رَاتِبَةً يُؤْخَذُونَ بِهَا مِنْ بَعْدِكَ‏.‏
Translation
It was narrated that Ya'la bin Umayyah said

I said to 'Umar bin al Khattab رضي الله عنه , `And when you (Muslims) travel inthe land, there is no sin on you if you shorten As­Salah (the prayer) if you fear that the disbelievers may put you in trial (attack you)` (al Nisa' 4:101]. But now the people are safe. He said: I wondered the same thing as you are wondering, and I asked the Messenger of Allah ﷺ about that. He said: “It is a charity that Allah has bestowed upon you, so accept His charity.`