(15) باب مَا جَاءَ فِي الرَّكْعَتَيْنِ إِذَا جَاءَ الرَّجُلُ وَالإِمَامُ يَخْطُبُ
Jabir bin Abdullah narrated:
"The Prophet was delivering a Khutbah on Friday when a man came. The Prophet said: 'Have you prayed?' He said no. So he said: 'Then stand and pray.'" Abu Eisa said: This Hadith is Hasan Sahih [It is the most correct thing about this topic.]
Reference: Jami` at-Tirmidhi 510
In-book reference: Book 4, Hadith 23
English translation: Vol. 1, Book 4, Hadith 510