Abdullah, the freed slave of Asma, said: While Sayyidah Asma (may Allah be pleased with her) was at Muzdalifah, she said: Has the moon disappeared? I said: No. Then she prayed for a while, then said: Has the moon disappeared? I said: Yes! She said: Ride on with me. So we rode on until she stoned the Jamrah. Then she came to her lodging and prayed. I said: Have we not been too early! She said: No, the Prophet (peace and blessings be upon him) "gave permission to the women."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9569