حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي الرِّجَالِ، مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ عَنْ أُمِّهِ، عَمْرَةَ بِنْتِ عَبْدِ الرَّحْمَنِ أَنَّهُ سَمِعَهَا تَقُولُ، لَعَنَ رَسُولُ اللَّهِ صلى الله عليه وسلم الْمُخْتَفِيَ وَالْمُخْتَفِيَةَ يَعْنِي نَبَّاشَ الْقُبُورِ ‏.‏

Yahya related to me from Malik that Abu'r-Rijal Muhammad ibn Abdar-Rahman heard his mother Amra bint Abd ar-Rahman say, "The Messengerof Allah, may Allah bless him and grant him peace, cursed both men andwomen who dug up," meaning those who dug up graves. Translation Not Available

Book Ref: Muwatta Imam Malik Book 16 Hadith 566
Web Ref:  Muwatta Imam Malik Book 16 Hadith 44