8. Ali has narrated from his father from Ibn Abi ‘Umayr from Hammad ibn ‘Uthaman from al-Halabiy who has said the following: “Abu ‘Abd Allah , has said, ‘The waiting period of a woman who does not experience Hayd (menses) and one who experiences Istihadah which does not become clean for three months, their waiting period is three months. Waiting period of a woman whose Hayd is straight is three Hayd-free periods.’ I then asked about the meaning of the words of Allah, most Majestic, most Glorious, ‘. . . if you have doubt.’ He (the Imam) said, ‘This ‘doubt’ is about what is more than one month, thus, she counts her waiting period for three months and ignores Hayd. Whatever of Hayd is in a month which does not increase in Hayd her waiting period is three cycles of Hayd.”’