Nahj al-Balāgha

Hadith 1430
taqwaasceticism
فَاتَّقِ اللهَ يَا ابْنَ حُنَيْفٍ، وَلْتَكْفُفْ أَقْرَاصُكَ، لِيَكُونَ مِنْ النَّارِ خَلَاصُكَ.
Therefore, O’ Ibn Ḥunayf, fear Allāh and be content with your own loaves so that you may escape Hell.
Source: al-Sharīf al-Raḍī