God says
And seek aid in steadfast patience and prayer: and this, indeed, is a hard thing for all but the humble, who know with certainty that they shall meet their Sustainer and that unto Him they shall return. -- Q.2:45,46
O you who believe! Seek help in patient perseverance and prayer: for God is with those who are patient in adversity. * -- Q.2:153
* This promise opens the door to every kind of spiritual well-being.
When calamity befalls them they say: “To God we belong and to Him we return.” On them God’s mercy and blessings are bestowed and they are the ones who receive guidance. -- Q.2:156,157
THE ARABIC WORD SABR implies many shades of meanings which it is impossible to comprehend in one English word: (1) patience in the sense of being thorough, rather than hasty; (2) patient perseverance, constancy, steadfastness, firmness of purpose; (3) systematic as opposed to spasmodic or chance action; (4) a cheerful attitude of resignation and understanding of sorrow, defeat, or suffering as opposed to murmuring, or rebellion, but saved from mere passivity or listlessness, by the element of constancy or steadfastness. … An additional meaning implied in Sabr is self-restraint. – Abdullah Yusuf Ali
Prophet said
1. “God the Almighty says: if I take away to me from my faithful servant his best friend in this world and he then bears it patiently for My sake, his reward from Me will be nothing less than paradise” – Hades Qudsi: Bukhari. N: Abu Hurairah.