And spend (in charity) of that with which We have provided you, before death comes to one of you and he says: "My Lord! If only You would give me respite for a little while (i.e. return to the worldly life), then I should give Sadaqah (i.e. Zakat) of my wealth, and be among the righteous [i.e. perform Hajj (pilgrimage to Makkah)].

And Allah grants respite to none when his appointed time (death) comes. And Allah is All-Aware of what you do.