Marriage of Sayeda Khadija and Prophet Muhammad (pbuh)

Prophet Muhammad (pbuh) married Sayeda Khadija when he was a young man. She was his one and only wife till his age of 50.
Throughout the struggling life of Mecca, she remained his confidant, helper, support, and benefactor of his Mission of teaching Islam.

Allah (swt) rewarded her by mentioning her in Qur'an in Sura-Duha (Surah 93) taking up her actions as His favors to the Holy Prophet (pbuh).

By the morning brightness, (1) and by the night when it is calm! (2) Your Lord has neither forsaken you, nor is He displeased with you, (3) and the Hereafter shall be better for you than the world. (4) Soon your Lord will give you [that with which] you will be pleased. (5) Did He not find you an orphan, and shelter you? (6) Did He not find you astray, and guide you? (7) Did He not find you needy, and enrich you? (8) So, as for the orphan, do not oppress him; (9) and as for the beggar, do not chide him; (10) and as for your Lord’s blessing, proclaim it! (11)