Sahih Muslim Book - 43, Hadith - 6094

حَدَّثَنَا أَبُو مَعْمَرٍ إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ الْهُذَلِيُّ ، حَدَّثَنَا سُفْيَانُ ، عَنْ عَمْرٍو ، قَالَ: قُلْتُ لِعُرْوَةَ: كَمْ كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِمَكَّةَ ؟ قَالَ: عَشْرًا ، قَالَ: قُلْتُ: فَإِنَّ ابْنَ عَبَّاسٍ يَقُولُ: ثَلاَثَ عَشْرَةَ.

It was narrated that ‘Amr said: “I said to ‘Urwah: ‘How long was the Prophet (s.a.w) in Makkah? He said: ‘Ten years.’ I said: ‘Ibn ‘Abbas says it was thirteen.”