Muwatta Imam Malik Book of Marriage, Hadith 36
Yahya related to me from Malik that Abd arRahman ibn al-Mujabbir said that Salim ibn Abdullah gave his son a slave-girl and said, "Do not go near her, for I wanted her, and did not act towards her."
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عُمَرَ بْنَ الْخَطَّابِ، وَهَبَ لاِبْنِهِ جَارِيَةً فَقَالَ لاَ تَمَسَّهَا فَإِنِّي قَدْ كَشَفْتُهَا .