Al-Kāfi - The Book of Haj

Chapter: The Case of One Who Kisses His Wife or Looks at Her With or Without Lust, or Looks at Someone Else َدَ النَّهْدِيِّ عَنْ ٠َّدِ بْنِ الْوَلِيدِ عَنْ أَبَانِ بْنِ عُثْ٠َانَ عَنِ الْحُسَيْنِ بْنِ حَ٠َّادٍ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَ٠َّهُ قَالَ لا بَأْسَ هَذِهِ قُبْلَةُ رَحْ٠َا يُكْرَهُ قُبْلَةُ الشَّهْوَةِ.

He (the Imam) said, ‘It is not harmful; it is a kiss of blessing, only kissing with lust is despised.’” ختلف فيه - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (17/356))