Sunan Ibn Majah, Volume 4, Book 24, Hadith 2782 (DarusSalam) ⓘ

It was narrated that ‘Abdullah bin ‘Amr said: “A man came to the Messenger of Allah and said: ‘O Messenger of Allah, I have come seeking to go out in Jihad with you, seeking thereby the Face of Allah and the Hereafter. I have come even though my parents are weeping.’ He said: ‘Go back to them and make them smile as you have made them weep.’”

حَدَّثَنَا أَبُو كُرَيْبٍ، مُحَمَّدُ بْنُ الْعَلاَءِ حَدَّثَنَا الْمُحَارِبِيُّ، عَنْ عَطَاءِ بْنِ السَّائِبِ، عَنْ أَبِيهِ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، قَالَ أَتَى رَجُلٌ رَسُولَ اللَّهِ صلى الله عليه وسلم فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي جِئْتُ أُرِيدُ الْجِهَادَ مَعَكَ أَبْتَغِي وَجْهَ اللَّهِ وَالدَّارَ الآخِرَةَ وَلَقَدْ أَتَيْتُ وَإِنَّ وَالِدَىَّ لَيَبْكِيَانِ ‏.‏ قَالَ ‏ "‏ فَارْجِعْ إِلَيْهِمَا فَأَضْحِكْهُمَا كَمَا أَبْكَيْتَهُمَا ‏" ‏ ‏.‏