وَلَقَدْ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَئِنْ أَنْتُمْ اتَّبَعْتُمْ أَذْنَابَ الْبَقَرِ وَتَبَايَعْتُمْ بِالْعِينَةِ وَتَرَكْتُمْ الْجِهَادَ فِي سَبِيلِ اللَّهِ لَيُلْزِمَنَّكُمْ اللَّهُ مَذَلَّةً فِي أَعْنَاقِكُمْ ثُمَّ لَا تُنْزَعُ مِنْكُمْ حَتَّى تَرْجِعُونَ إِلَى مَا كُنْتُمْ عَلَيْهِ وَتَتُوبُونَ إِلَى اللَّهِ
مسند امام احمد بن حنبل · Hadith 5562.1
(It was narrated that Ibn 'Umar said: I heard the Messenger of Allah (PBUH) say: "When you take hold of the tails of cattle (and are content with farming), and enter into 'eenah transactions, and forsake jihad for the sake of Allah, Allah will place a yoke of humiliation firmly around your necks and wil not relieve you of it until you go back to the way you were and repent to Allah."