Weak
graded by Al-Albani
Mishkat al-Masabih 332
Narrator:Umar ibn al-Khattāb
وَعَن ابْن عُمَرَ أَنَّ عُمَرَ بْنَ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ قَالَ: إِن الْقبْلَة من اللَّمْس فتوضؤوا مِنْهَا
Ibn ‘Umar reported ‘Umar b. al-Khattab as saying, “A kiss is connected with sexual intercourse, so perform ablution on that account.”
Cited in Mishkat al-Masabih (No. 332).