5. Muhammad ibn Yahya and others has narrated from Muhammad ibn Ahmad from Ahmad ibn al-Hassan from ‘Amr ibn Sa‘id from Musaddiq ibn Sadaqah from ‘Ammar ibn Musa who has said the following: “I once asked abu ‘Abd Allah عليه السلام, about the case of a fasting man who feels a severe headache if he can eat. He (the Imam) said, ‘If one feels severe headache, a severe fever and a severe eye illness, then it is lawful for him to discontinue his fasting.’”