Hadith 7-6

حَدَّثَنا أَبي رَضِىَ اللهُ عَنْهُ قالَ: حَدَّثَنا عَلِىُّ بْنُ إِبراهِيمَ بْنِ هاشِمٍ، عَنْ أَبيهِ، عَنْ عُثْمانَ بْنِ عِيسَى، عَنْ أَصْحابِهِ قالَ: قالَ أَبُو يُوسُفَ لِلْمَهْدِيِّ - وَعِنْدَهُ مُوسَى بْنِ جَعْفَرٍعَلَيْهِمَا السَّلاَمُ: تَأذَنْ لي‏ أَنْ أَسْأَلَهُ عَنْ مَسائِلَ لَيْسَ عنْدَهُ فِيها شَي‏ءٌ؟ فَقالَ لَهُ: نَعَمْ، فَقـالَ لِمُوسَـى بْنِ جَعْفَرٍعَلَيْهِمَا السَّلاَمُ: أَسـأَلَكَ؟ قـالَ: نَعَمْ، قالَ: ما تَقُولُ فِي التَّظْلِيلِ لِلْمُحْرِمِ؟ قالَ: لا يُصْلِحُ، قالَ: فَيَضْرِبُ الخَبَأَ الأَرْضِ وَيَدْخُلُ البِيْتَ؟ قالَ: نَعَمْ، قالَ: فَما الفَرْقُ بَيْنِ هذَيْنِ؟ قالَ أَبُو الحَسَن‏ عَلَيْهِ السَّلامُ: ما تَقُولُ فِي الطَّامِثِ أَتَقْضِي الصَّلاةَ؟ قالَ: لا، قالَ: أَفَتَقْضِي الصَّوْمَ؟ قالَ: نَعَمْ، قالَ: وَلَمْ؟ قالَ: هكَذا جاءَ، قالَ أَبُو الحَسَن‏ عَلَيْهِ السَّلامُ: وَهكَذا جاءَ هذا، فَقالَ المَهْدِيُّ لأَبِي يُوسُفَ: ما أَراكَ صَنَعْتَ شَيْئاً؟ قالَ: رَمانِي بِحَجَرٍ دامِغٍ.

(The author of the book narrated) my father - may God be pleased with him - narrated that Ali ibn Ibrahim ibn Hashem quoted on the authority of his father, on the authority of Uthman ibn Isa, on the authority of his friends, “In the presence of Musa ibn Ja’far (a.s.), Abu Yusuf [8] asked Al-Mahdi [9] , “Will you grant me permission to ask him questions which he will fail to answer?” He replied, “Yes.” Then he asked Musa ibn JA’far (a.s.), “Should I ask?” Abu Yusuf asked, “What is the decree for a Mecca pilgrim who is in consecration (muhrim) going in the shade?” The Imam (a.s.) said, “It is not allowed.” He asked, “What if they set up a tent and he enters it?” The Imam (a.s.) replied, “That is allowed.” He asked, “What is the difference between these two?” Abul Hassan (a.s.) asked, “Should a menstruating woman make up her prayers?” He replied, “Yes.” The Imam (a.s.) asked, “Should a menstruating woman make up her fasts?” He replied, “No.” The Imam (a.s.) asked, “Why?” He replied, “This is the Divine Decree.” Then Abul Hassan (a.s.) said, “The same holds for your question.” Then Al-Mahdi told Abu Yusuf, “I see that you could not do anything.” He said, “He gave me a solid, invalidating reply.”