It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: Allah has written for every human being his share of adultery, which he will inevitably get. The adultery of the eyes is looking, the adultery of the hands is touching, a person's soul desires and wishes, while the private part confirms or denies it.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 8598
Hadith Gradingحکم دارالسلام:حدیث صحیح ، خ : 6612، م : 2657 ، وھذا إسناد فیه ابن لھیعة سیئ الحفظ ، لکنه قد توبع