Hadith 2917
وَرُوِيَ أَنَّ مُعَاذًا كَانَ يَدَّانُ فَأَتَى غُرَمَاؤُهُ إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَبَاعَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَالَهُ كُلَّهُ فِي دَيْنِهِ حَتَّى قَامَ مُعَاذٌ بِغَيْرِ شَيْءٍ. مُرْسَلٌ هَذَا لَفْظُ الْمَصَابِيحِ. وَلَمْ أَجِدْهُ فِي الْأُصُول إِلَّا فِي الْمُنْتَقى
A mursal tradition is transmitted to the effect that Mu'adh was in debt and his creditors went to the Prophet who sold all his property to pay his debt, with the result that Mu'adh had nothing left. This is the wording in al-Masabih, but the only source in which I have found it is al-Muntaqa.