Bulugh al-Maram, Book 6, Hadith 54 (In-Book)

'Abdullah bin Masud (RAA) narrated that he kept the Ka'bah on his left and Mina on his right and threw the seven pebbles of Jamrat-ul ‘Aqabah. He then said, ‘This is the location where the one on whom surah al-Baqarah. (surah no. 2) was revealed (i e. the Messenger of Allah).’ Agreed upon.

وَعَنْ عَبْدِ اَللَّهِ بْنِ مَسْعُودٍ ‏- رضى الله عنه ‏- { أَنَّهُ جَعَلَ اَلْبَيْتَ عَنْ يَسَارِهِ, وَمِنًى عَنْ يَمِينِهِ, وَرَمَى اَلْجَمْرَةَ بِسَبْعِ حَصَيَاتٍ 1‏ وَقَالَ: هَذَا مَقَامُ اَلَّذِي أُنْزِلَتْ عَلَيْهِ سُورَةُ اَلْبَقَرَةِ } مُتَّفَقٌ عَلَيْهِ.‏ 2‏.‏ ‏1 ‏- تحرف في " أ " إلى: " حصاة ".‏‏2 ‏- صحيح.‏ رواه البخاري ( 1749 )‏، ومسلم ( 1296 )‏ ( 307 )‏.‏

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also referenced under: Book 6, Hadith 781 (English)