‘Urwah reported: Umar ibn al-Khattab, may Allah be pleased with him, would say in his sermons, “You know that greed is poverty and renunciation is independence. Verily, whoever renounces his desire for what people have, he will be independent of them.”
Source: al-Zuhd wal-Raqā’iq 631
عَن عُرْوَة قَالَ قَالَ عُمَرُ بْنُ الْخَطَّابِ فِي خُطْبَتِهِ رضي الله عنه تَعْلَمُونَ أَنَّ الطَّمَعَ فَقْرٌ وَأَنَّ الْإِيَاسَ غِنًى وَإِنَّهُ مَنْ أَيِسَ مِمَّا عِنْدَ النَّاسِ اسْتَغْنَى عَنْهُمْ
631 الزهد والرقائق لابن المبارك