Ibrahim al-Taymi said: My father had stopped praying with us. I asked: "Why have you stopped praying with us?" He said: "You people shorten (the prayer)." I said: "Then what about the saying of the Prophet (peace and blessings be upon him): 'Among you are the elderly, the weak and the one with a need'?" He said: "I heard Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) say that, and then he would pray three times as much as you pray."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10461