According to Sami Al-Suwailem, "researchers in Islamic finance" do not agree on the "precise meaning" of gharar,[REF] although there is not necessarily great difference among the Islamic schools of jurisprudence (madhab) in the term's definition.
Similarly, the Shafi legal school defined gharar (according to Sami al-Suwailem) as "that whose nature and consequences are hidden" or "that which admits two possibilities, with the less desirable one being more likely."[REF]