Al-Kāfi
Hadith 45عَنْهُ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ حَرِيزٍ عَمَّنْ ذَكَرَهُ عَنْ أَحَدِهِمَا ( عليهما السلام ) فِي قَوْلِ اللَّهِ عَزَّ وَ جَلَّ يَعْلَمُ ما تَحْمِلُ كُلُّ أُنْثى وَ ما تَغِيضُ الْأَرْحامُ وَ ما تَزْدادُ قَالَ الْغَيْضُ كُلُّ حَمْلٍ دُونَ تِسْعَةِ أَشْهُرٍ وَ مَا تَزْدَادُ كُلُّ شَيْءٍ يَزْدَادُ عَلَى تِسْعَةِ أَشْهُرٍ فَكُلَّمَا رَأَتِ الْمَرْأَةُ الدَّمَ الْخَالِصَ فِي حَمْلِهَا فَإِنَّهَا تَزْدَادُ بِعَدَدِ الْأَيَّامِ الَّتِي رَأَتْ فِي حَمْلِهَا مِنَ الدَّمِ .
2. It is narrated from the narrator of the previous Hadith from Ahmad ibn Muhammad from al-Husayn ibn Sa‘id from Hammad ibn ‘Isa from Hariz from those whom he has mentioned who has said the following: “I once asked one of the two Imam, (abu Ja‘far or abu ‘Abd Allah), ‘Alayhim al-Salam, about the words of Allah, most Majestic, most Glorious, ‘He knows what every female bears and what the wombs decrease (spoil) and what they increase (dispose).’ (13:8) He (the Imam) said, ‘Decrease’ is every pregnancy before nine months and ‘increase’ is what is more than nine months. Whenever a woman experiences pure blood discharge during her pregnancy a similar number of days are increased in the length of her pregnancy.’”