Arabic word or phraseMeaning
عَنْهُfrom him
ضَيْعَتَهُhis loss; waste or loss affecting him
وَيَحُوطُهُand safeguards him
مِنْ وَرَائِهِliterally from behind him; here, in his absence
In يَكُفُّ عَنْهُ ضَيْعَتَهُ, loss is kept from the fellow believer. Loss of belongings is an illustration of ضَيْعَتَهُ; do not reduce it to poverty alone. The ending of يَحُوطُهُ also refers to that fellow believer. مِنْ means “from” and وَرَائِهِ means “behind him”; the whole expression here concerns his absence.
Teaching example: a colleague is absent and their belongings are about to be damaged by rain. You move them to safety, attending to their interests rather than merely standing physically behind them.