Lady Khadija (A) understood the truth

“Lady Khadija (A) understood the truth [of Islam] – right away – due to her pure soul. Just as she saw the Prophet (S) returning from [the cave of] Hira in a familiar state of being, as depicted in books, she understood an important phenomenon had taken place. Thus, her heart was fascinated, and she believed. Then she stood steadfastly for belief in Islam.”