Scholars say that jizya is not obligatory for non Muslim women. Is their any sahih evidence for this.
No. Jizyah is only due from adult, sane, free, males from the disbelievers.
The basic evidence for this is the verse:
قاتلوا ... حتى يعطوا الجزية
Fight ... until they give the jizyah
Jizyah is an escape from fighting and execution, while it is forbidden to fight or kill women in the first place, so they don't require the protection of Jizya.
فنهى رسول الله صلى الله عليه وسلم عن قتل النساء والصبيان
Allah's Messenger (ﷺ) forbade the killing of women and children.
Further there is the instruction of Umar ibn al-Khatab:
أن عمر، كتب إلى عماله: لا تضربوا الجزية على النساء والصبيان
Umar wrote to his governors: Do not impose Jizya on the women and the children