Q: My last haiz (or what I considered my haiz) was June 28 - July 4 and remained a brown colour throughout. It looked like discharge and for 1 or 2 days had red streaks of blood. Then it continued as brown discharge/ blood , im not sure. Today (July 15) I have got the same brown discharge / blood. But I have not had a 15 day gap of purity so I have continued to pray as I think I have istihaza.
1. Am I right in thinking I should be praying now?
2. Should I have prayed during the first time I experienced the brown discharge / blood
3. I have read online that there must be a 15 day or 10 day gap of purity - I would like to know where the evidence for this is.
4. I also heard the ruling for istihazah is to clean with instinja, I do this but still blood remains, so I pray anyways. Is my prayer valid or must I repeat them once I am pure?