"O Messenger of Allah! My father is an old man who cannot perform Hajj or 'Umrah, nor can he travel." He said "Perform Hajj and 'Umrah on behalf of your father."  

أَنَّهُ قَالَ يَا رَسُولَ اللَّهِ إِنَّ أَبِي شَيْخٌ كَبِيرٌ لاَ يَسْتَطِيعُ الْحَجَّ وَلاَ الْعُمْرَةَ وَالظَّعْنَ قَالَ حُجَّ عَنْ أَبِيكَ وَاعْتَمِرْ