(5) باب الرُّخْصَةِ فِي التَّخَلُّفِ لِمَنْ لَهُ وَالِدَانِ .
It was narrated that 'Abdullah bin 'Amr said:
"A man came to the Messenger of Allah (ﷺ) and asked him for permission to go for Jihad. He said: 'Are your parents alive?' He said: 'Yes.' He said: 'Then strive for their sake.'"
Reference: Sunan an-Nasa'i 3103
In-book reference: Book 25, Hadith 19
English translation: Vol. 1, Book 25, Hadith 3105