An-Najasat (impure and filthy things) which fall in cooking butter (ghee - which is obtained by evaporating moisture from butter) and water
حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدٍ، قَالَ أَخْبَرَنَا عَبْدُ اللَّهِ، قَالَ أَخْبَرَنَا مَعْمَرٌ، عَنْ هَمَّامِ بْنِ مُنَبِّهٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " كُلُّ كَلْمٍ يُكْلَمُهُ الْمُسْلِمُ فِي سَبِيلِ اللَّهِ يَكُونُ يَوْمَ الْقِيَامَةِ كَهَيْئَتِهَا إِذْ طُعِنَتْ، تَفَجَّرُ دَمًا، اللَّوْنُ لَوْنُ الدَّمِ، وَالْعَرْفُ عَرْفُ الْمِسْكِ ".
Narrated Abu Huraira: The Prophet (ﷺ) said, "A wound which a Muslim receives in Allah's cause will appear on the Day of Resurrection as it was at the time of infliction; blood will be flowing from the wound and its color will be that of the blood but will smell like musk."