Malik commented, "I think that this refers to sexual intercourse. When he comes in to her in her room and she says, 'He has had intercourse with me' and he says, 'I have not touched her', he is believed. When she comes in to him in his room and he says, 'I have not had intercourse with her' and she says, 'He had intercourse with me', she is believed."
Arabic : Book 28, Hadith 1107