Sahih Bukhari Volume 6, Book 65, Hadith 4526

حَدَّثَنِى إِبْرَاهِيمُ بْنُ مُوسَى، أَخْبَرَنَا هِشَامٌ، عَنِ ابْنِ جُرَيْجٍ، قَالَ سَمِعْتُ ابْنَ أَبِي مُلَيْكَةَ، يَقُولُ قَالَ ابْنُ عَبَّاسٍ ـ رضى الله عنهما ـ ‏{‏حَتَّى إِذَا اسْتَيْأَسَ الرُّسُلُ وَظَنُّوا أَنَّهُمْ قَدْ كُذِبُوا‏}‏ خَفِيفَةً، ذَهَبَ بِهَا هُنَاكَ، وَتَلاَ ‏{‏حَتَّى يَقُولَ الرَّسُولُ وَالَّذِينَ آمَنُوا مَعَهُ مَتَى نَصْرُ اللَّهِ أَلاَ إِنَّ نَصْرَ اللَّهِ قَرِيبٌ‏}‏فَلَقِيتُ عُرْوَةَ بْنَ الزُّبَيْرِ فَذَكَرْتُ لَهُ ذَلِكَ

Narrated By Ibn Abu Mulaika : Ibn 'Abbas recited: "(Respite will be granted) until when the Apostles gave up hope (of their people) and thought that they were denied (by their people). There came to them Our Help..." (12.110) reading Kudhibu without doubling the sound 'dh', and that was what he understood of the Verse. Then he went on reciting: "...even the Apostle and those who believed along with him said: When (will come) Allah's Help? Yes, verily, Allah's Help is near." (2.214) Then I met 'Urwa bin Az-Zubair and I mentioned that to him.