A man came to the Prophet ﷺ asking his permission to take part in Jihad. The Prophet ﷺ asked him, "Are your parents alive?" He replied in the affirmative. The Prophet ﷺ said to him, "Then exert yourself in their service."  

سَمِعْتُ أَبَا الْعَبَّاسِ الشَّاعِرَ وَكَانَ لاَ يُتَّهَمُ فِي حَدِيثِهِ قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ عَمْرٍو ؓ يَقُولُ جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ فَاسْتَأْذَنَهُ فِي الْجِهَادِ فَقَالَ أَحَىٌّ وَالِدَاكَ قَالَ نَعَمْ قَالَ فَفِيهِمَا فَجَاهِدْ