It is narrated from Hazrat Malik bin Abdullah Khath'ami (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whosever feet become dusty in the path of Allah even for a moment during the day, Allah makes the fire of Hell forbidden upon him."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 21963
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف لجهالة حال ليث بن المتوكل، وقد خولف