Imam al-Sadiq (AS) said, ‘The believing woman is scarcer than the believing man, and the believing man is scarcer than red sulphur, and who from among you has ever seen red sulphur?!
Al-Kāfi #868“I heard Abu ‘Abdillah (a.s.) saying, ‘The female believer is more valued than a male believer, and a male believer is more valued than red...