Sahih al-Bukhari, Hadith 2376 ⓘ
Narrated Anas: The Prophet decided to grant a portion of (the uncultivated land of) Bahrain to the Ansar. The Ansar said, "(We will not accept it) till you give a similar portion to our emigrant brothers (from Quraish)." He said, "(O Ansar!) You will soon see people giving preference to others, so remain patient till you meet me (on the Day of Resurrection).
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا حَمَّادٌ، عَنْ يَحْيَى بْنِ سَعِيدٍ، قَالَ سَمِعْتُ أَنَسًا ـ رضى الله عنه ـ قَالَ أَرَادَ النَّبِيُّ صلى الله عليه وسلم أَنْ يُقْطِعَ مِنَ الْبَحْرَيْنِ، فَقَالَتِ الأَنْصَارُ حَتَّى تُقْطِعَ لإِخْوَانِنَا مِنَ الْمُهَاجِرِينَ مِثْلَ الَّذِي تُقْطِعُ لَنَا قَالَ " سَتَرَوْنَ بَعْدِي أَثَرَةً فَاصْبِرُوا حَتَّى تَلْقَوْنِي " .
also referenced under: Book 42, Hadith 24 (In-Book) & Volume 3, Book 40, Hadith 564 (USC-MSA)