BAYHAQI 18610:
from Muḥammad b. Isḥāq —
[Machine] "Abu Bakr Al-Siddiq wrote a letter to Khalid bin Al-Walid, who was in Al-Yamamah, from Abdullah Abu Bakr's caliph. Peace be upon you, O Khalid bin Al-Walid and those who are with him from the Muhajireen, the Ansar, and the followers. I praise Allah to you, the One whom there is no god but He. After that, all praise be to Allah who fulfilled His promise, supported His servant, honored His guardian, humiliated His enemy, and defeated the factions individually. Indeed, Allah, whom there is no god but He, has said: 'Allah has promised those who have believed among you and done righteous deeds that He will surely grant them succession [to authority] upon the earth just as He granted it to those before them and that He will surely establish for them [therein] their religion which He has preferred for them.' (Qur'an 24:55) He wrote the entire verse and recited the verse as a promise from Him, with no deviation, and made jihad obligatory upon the believers, saying: 'Fighting has been prescribed upon you while it is hateful to you.' (Qur'an 2:216) Until he finished reciting the verses, he affirmed the promise of Allah to you, so obey Him in what He has prescribed upon you. Even if the burden becomes heavy, the provision becomes scarce, and difficulties arise, consider it small compared to the immense reward from Allah. So march, and may Allah have mercy upon you, in the path of Allah with light and heavy weapons, and strive with your wealth and yourselves.' (Qur'an 9:41) He wrote the entire verse saying, 'Behold, I have commanded Khalid bin Al-Walid to march to Iraq, and he should not leave it until my order reaches him. So march with him and do not lag behind, for it is a way in which Allah has glorified and increased the reward for those whose intention is good and whose desire for goodness is great. So when you reach Iraq, stay there until my order comes to you. May Allah suffice us and you from the difficulties of this world and the hereafter. Peace be upon you, and the mercy of Allah and His blessings.' The Sheikh (narrator) then elaborated on the historical events and the inclusion of his letter in the biography towards Sham (Greater Syria) and the reinforcement of the army leaders there and the victories of the Muslims in the days of Abu Bakr Al-Siddiq, and the departure of Heraclius towards Byzantium and the conquests in Iraq, Persia, and the destruction of Khosrow and the carrying of his treasures to Al-Madina in the days of Umar bin Al-Khattab."
البيهقي ١٨٦١٠:
عن محمد بن اسحاق —
فَكَتَبَ أَبُو بَكْرٍ الصِّدِّيقُ ؓ إِلَى خَالِدِ بْنِ الْوَلِيدِ وَهُوَ بِالْيَمَامَةِ مِنْ عَبْدِ اللهِ أَبِي بَكْرٍ خَلِيفَةِ رَسُولِ اللهِ ﷺ إِلَى خَالِدِ بْنِ الْوَلِيدِ وَالَّذِينَ مَعَهُ مِنَ الْمُهَاجِرِينَ وَالْأَنْصَارِ وَالتَّابِعِينَ بِإِحْسَانٍ سَلَامٌ عَلَيْكُمْ فَإِنِّي أَحْمَدُ إِلَيْكُمُ اللهَ الَّذِي لَا إِلَهَ إِلَّا هُوَ أَمَّا بَعْدُ فَالْحَمْدُ لِلَّهِ الَّذِي أَنْجَزَ وَعْدَهُ وَنَصَرَ عَبْدَهُ وَأَعَزَّ وَلِيَّهُ وَأَذَلَّ عَدُوَّهُ وَغَلَبَ الْأَحْزَابَ فَرْدًا فَإِنَّ اللهَ الَّذِي لَا إِلَهَ هُوَ قَالَ {وَعَدَ اللهُ الَّذِينَ آمَنُوا مِنْكُمْ وَعَمِلُوا الصَّالِحَاتِ لَيَسْتَخْلِفَنَّهُمْ فِي الْأَرْضِ كَمَا اسْتَخْلَفَ الَّذِينَ مِنْ قَبْلِهِمْ وَلَيُمَكِّنَنَّ لَهُمْ دِينَهُمُ الَّذِي ارْتَضَى لَهُمْ} [النور 55] وَكَتَبَ الْآيَةَ كُلَّهَا وَقَرَأَ الْآيَةَ وَعْدًا مِنْهُ لَا خُلْفَ لَهُ وَمَقَالًا لَا رَيْبَ فِيهِ وَفَرَضَ الْجِهَادَ عَلَى الْمُؤْمِنِينَ فَقَالَ {كُتِبَ عَلَيْكُمُ الْقِتَالُ وَهُوَ كُرْهٌ لَكُمْ} [البقرة 216] حَتَّى فَرَغَ مِنَ الْآيَاتِ فَاسْتَتِمُّوا بِوَعْدِ اللهِ إِيَّاكُمْ وَأَطِيعُوهُ فِيمَا فَرَضَ عَلَيْكُمْ وَإِنْ عَظُمَتْ فِيهِ الْمُؤْنَةُ وَاسْتَبَدَّتِ الرَّزِيَّةُ وَبَعُدَتِ الْمَشَقَّةُ وَفُجِعْتُمْ فِي ذَلِكَ بِالْأَمْوَالِ وَالْأَنْفُسِ فَإِنَّ ذَلِكَ يَسِيرٌ فِي عَظِيمِ ثَوَابِ اللهِ فَاغْزُوا رَحِمَكُمُ اللهُ فِي سَبِيلِ اللهِ {خِفَافًا وَثِقَالًا وَجَاهِدُوا بِأَمْوَالِكُمْ وَأَنْفُسِكُمْ} [التوبة 41] كَتَبَ الْآيَةَ أَلَا وَقَدْ أَمَرْتُ خَالِدَ بْنَ الْوَلِيدِ بِالْمَسِيرِ إِلَى الْعِرَاقِ فَلَا يَبْرَحْهَا حَتَّى يَأْتِيَهُ أَمْرِي فَسِيرُوا مَعَهُ وَلَا تَتَثَاقَلُوا عَنْهُ فَإِنَّهُ سَبِيلٌ يُعْظِمُ اللهُ فِيهِ الْأَجْرَ لِمَنْ حَسُنَتْ فِيهِ نِيَّتُهُ وَعَظُمَتْ فِي الْخَيْرِ رَغْبَتُهُ فَإِذَا وَقَعْتُمُ الْعِرَاقَ فَكُونُوا بِهَا حَتَّى يَأْتِيَكُمْ أَمْرِي كَفَانَا اللهُ وَإِيَّاكُمْ مُهِمَّاتِ الدُّنْيَا وَالْآخِرَةِ وَالسَّلَامُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ قَالَ الشَّيْخُ ثُمَّ بَيَّنَ فِي التَّوَارِيخِ وُرُودَ كِتَابِهِ عَلَيْهِ بِالسَّيْرِ إِلَى الشَّامِ وَإِمْدَادِ مَنْ بِهَا مِنْ أُمَرَاءِ الْأَجْنَادِ وَمَا كَانَ مِنَ الظَّفَرِ لِلْمُسْلِمِينَ يَوْمَ أَجْنَادِينَ فِي أَيَّامِ أَبِي بَكْرٍ الصِّدِّيقِ ؓ وَمَا كَانَ مِنْ خُرُوجِ هِرَقْلَ مُتَوَجِّهًا نَحْوَ الرُّومِ وَمَا كَانَ مِنَ الْفُتُوحِ بِهَا وَبِالْعِرَاقِ وَبِأَرْضِ فَارِسَ وَهَلَاكِ كِسْرَى وَحَمْلِ كُنُوزِهِ إِلَى الْمَدِينَةِ فِي أَيَّامِ عُمَرَ بْنِ الْخَطَّابِ ؓ
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