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كتاب التفسير
65  
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
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Allah's Statement: "Freedom from (all) obligations (is declared) from Allah and His Messenger ﷺ to those of the Mushrikin [polytheists, pagans, idolaters, disbelievers in the Oneness of Allah and in His Messenger Muhammad ﷺ] with whom you made a treaty." (V.9:1)
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Sahih al-Bukhari 4654

Narrated Al-Bara:

The last Verse that was revealed was: 'They ask you for a legal verdict: Say: Allah directs (thus) about Al-Kalalah (those who leave no descendants or ascendants as heirs).' And the last Sura which was revealed was Baraatun (9) .

حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ الْبَرَاءَ ـ رضى الله عنه ـ يَقُولُ آخِرُ آيَةٍ نَزَلَتْ ‏{‏يَسْتَفْتُونَكَ قُلِ اللَّهُ يُفْتِيكُمْ فِي الْكَلاَلَةِ‏}‏ وَآخِرُ سُورَةٍ نَزَلَتْ بَرَاءَةٌ‏.‏
Reference : Sahih al-Bukhari 4654
In-book reference : Book 65, Hadith 176
USC-MSA web (English) reference : Vol. 6, Book 60, Hadith 177
  (deprecated numbering scheme)