Sayyiduna Abdullah bin Zubair (may Allah be pleased with them both) says that I asked my father, Sayyiduna Zubair (may Allah be pleased with him), "Why is it that, unlike Sayyiduna Ibn Mas'ud (may Allah be pleased with him) and other companions whom I hear narrating hadith, I do not hear you narrating?" He replied, "Since I accepted Islam, I have never been separated from the Prophet (peace and blessings be upon him), but I heard the Prophet (peace and blessings be upon him) say: 'Whoever deliberately attributes a lie to me, let him take his seat in the Hellfire.' (That is why I am afraid)."