I saw Samrah bint Nuhaik and she had

Narrated Abu Huraira (Radi-Allahu 'anhu):

Allah's Apostle (Sallallahu 'Alaihi Wa Sallam) said, "When Allah completed
the creation, He wrote in His Book which is with Him on His Throne, 'My
Mercy overpowers My Anger.' "

Bukhari Vol. 4 : No. 416

Yazeed ibn Abu Habeeb reported: Umar ibn Al-Khattab, may Allah be pleased with him, appointed Shifa bint Abdullah over the market. I do not know of a woman who was appointed besides her.

[Ibn Abu Al-Asim, Al-Ahad wal-Mathani 2860]

عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ أَنَّ عُمَرَ رَضِيَ اللَّهُ عَنْهُ اسْتَعْمَلَ الشِّفَاءَ عَلَى السُّوقِ قَالَ وَلا نَعْلَمُ امْرَأَةً اسْتَعْمَلَهَا غَيْرَ هَذِهِ

2860 الآحاد والمثاني لابن أبي عاصم ومن ذكر أزواج النبي صلى الله الشفاء بنت عبد الله رضي الله عنها

 Abu Balaj Yahya reported: I saw Samrah bint Nuhaik and she had known the Prophet, peace and blessings be upon him. She had on a thick corset and veil. In her hand was a whip which she used to discipline people, and she would enjoin good and forbid evil.

[At-Tabarani, Al-Ma’jam Al-Kabeer, Number 785, Sahih]

Ibn Abd al-Barr said, “She knew the Messenger of Allah during her lifetime. She would patrol the market while enjoining good and forbidding evil. She would discipline people with a whip that she had with her.”

[Al-Isti’ab bil Ma’ruf 3197]

Ibn Al-Jawzai said, “Umar ibn Al-Khattab would enter the market and he would come to her.”

[Seerah Umar ibn Al-Kharrab 41]

عَنْ أَبِي بَلْجٍ يَحْيَى بْنِ أَبِي سُلَيْمٍ قَالَ رَأَيْتُ سَمْرَاءَ بِنْتَ نَهِيكٍ وَكَانَتْ قَدْ أَدْرَكَتِ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَلَيْهَا دِرْعٌ غَلِيظٌ وَخِمَارٌ غَلِيظٌ بِيَدِهَا سَوْطٌ تُؤَدِّبُ النَّاسَ وَتَأْمُرُ بِالْمَعْرُوفِ وَتَنْهَى عَنِ الْمُنْكَرِ

785 المعجم الكبير مسند النساء باب السين سمراء بنت نهيك

المحدث الهيثمي خلاصة حكم المحدث رجاله ثقات

قال ابن عبد البر أدركت رَسُول اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وعمرت وكانت تمر فِي الأسواق وتأمر بالمعروف وتنهى عَنِ المنكر وتضرب الناس عَلَى ذلك بسوط كَانَ معها

3197  الاستيعاب في معرفة الأصحاب لابن عبد البر كتاب النساء وكناهن باب السين سمراء بنت نهيك الأسدية

قال ابن الجوزي وكان عمر رضي الله عنه إذا دخل السوق دخل عليها

   41 سيرة عمر بن الخطاب ص