Umar II on Akhirah: Set right your Hereafter, Allah will care for your world

Ibn Abi Dunya reported: Umar ibn Abdul Aziz, may Allah have mercy on him, said, “Take care of your Hereafter and Allah will take care of your worldly life. Take care of your private life and Allah will take care of your public life.”

Source: Kitāb al-Ikhlāṣ 50

عن ابن أبي الدنيا قال عمر بن عبد العزيز رحمه الله أَصْلِحُوا آخِرَتَكُمْ يُصْلِحِ اللَّهُ لَكُمْ دُنْيَاكُمْ وَأَصْلِحُوا سَرَائِرَكُمْ يُصْلِحِ اللَّهُ لَكُمْ عَلانِيَتَكُمْ

50 الإخلاص والنية لابن أبي الدنيا