Hadith 5475
´Abu Sa'eed said:` "I heard the Messenger of Allah [SAW] say: 'A'udhu billahi minal-kufri wad-dain. (I seek refuge with Allah from Kufr and debt.)' A man said: 'O Messenger of Allah, are you equating debt with Kufr?' The Messenger of Allah [SAW] said: 'Yes.'"
Hadith 5487
´It was narrated from Abu Sa'eed Al-Khudri that:` The Messenger of Allah [SAW] used to say: "A'udhu billahi minal-kufri wal-faqr. (O Allah, I seek refuge with You from Kufr and poverty.)" A man said: "Are they equal?" He said: "Yes."