Rashid bin Sa'd (may Allah have mercy on him) said: The Prophet (peace and blessings be upon him) entered his house, and Umar bin al-Khattab (may Allah be pleased with him) was with him, and they saw Zaynab bint Jahsh (may Allah be pleased with her) praying and supplicating in her prayer. So the Prophet (peace and blessings be upon him) said: "She is one who sighs much in humble entreaty (awwahah)."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20479