Sahih al-Bukhari 3936

It is related that Sa'd ibn Malik said, "The Prophet, may Allah bless him and grant him peace, visited me in the year of Farewell Pilgrimage on account of a illness from which I thought I would die. I said, 'Messenger of Allah, this illness has reached what you see in me and I have property and no heirs except a daughter. Shall I give two-thirds of my property away as sadaqa?' He said, 'No.' I said, 'Shall I give a half as sadaqa?' He said, 'No.' He said, 'A third, Sa'd, and a third is a lot. It is better to leave rich heirs than to leave them poor, begging from other people.'" He said, "That you leave heirs, and there is nothing you spend, desiring by it the face of Allah, but that you will be rewarded, even for a morsel you put in your wife's mouth.' I said, 'Messenger of Allah, will I be left behind after my companions leave?' He said, 'You will not be left behind, for any virtuous actions you do will raise you in degree and elevation. And then you might be left behind so that some people will benefit from you and others harmed by you. O Allah, let My Companions' complete their emigration and do not let them turn back on their heels, but poor Sa'd ibn Khawla!' The Messenger of Allah, may Allah bless him and grant him peace, grieved over his dying in Makka." It is related from Ibrahim, "that you leave your heirs."

Yahya ibn Qaza‘ah related to us: Ibrahim related to us, on the authority of az-Zuhri, on the authority of ‘Amir ibn Sa‘d ibn Malik. On the authority of his father Sa‘d ibn Abi Waqqas, who said: The Prophet visited me in the year of the Farewell Pilgrimage during an illness which had brought me to the threshold of death; and I said: O Apostle of God! Thou seest how I suffer. I am a rich man, and I have no heir except my only daughter. Shall I, then, give away two-thirds of my possessions as alms? The Prophet answered: Nay. I said: Shall I, then, give away one-half? He answered: Nay. And he added: Give away one-third, O Sa‘d! And even one-third is much. Behold, to leave thy children rich is better than to leave them poor and reduced to begging from other people. And whatever thou spend with a desire to please God, God will reward thee therefor—and even though it be a morsel which thou put into the mouth of thy wife. I said: O Apostle of God! Am I to be left in Mecca after my companions have gone? The Prophet answered: Nay, thou shalt not be left behind. Whatever thou do with a desire to please God is bound to add to thy spiritual rank and thy merit. And I hope that thou wilt remain alive long enough to become a blessing for some peoples and an affliction for others. O God! Fulfil my companions’ hijrah, and let them not turn back on their heels! But as to the unlucky Sa‘d ibn Khawlah, the Apostle of God lamented his death in Mecca. And Ahmad ibn Yunus and Musa said, on the authority of Ibrahim: “. . . to leave thy heirs.”