90 Preface وَقالوا لَن نُؤمِنَ لَكَ حَتّىٰ تَفجُرَ لَنا مِنَ الأَرضِ يَنبوعًاAli Quli QaraiThey say, ‘We will not believe you until you make a spring gush forth for us from the ground.