The Prophet sallahu alayhi wa salam said:

عينانِ لا تمَسَّهما النَّارُ ، عينٌ بكتْ من خشيةِ اللهِ ، وعينٌ باتتْ تحرسُ في سبيل اللهِ

Two eyes will never be touched by the fire of Hell; an eye which weeps out of Fear of Allah and an eye which spends the night in guarding in the Cause of Allah

[Saheeh Targheeb on. 1229]

Al-Munaawi rahimahullah commented saying:

أي من خوف عقابه أو مهابة جلاله

“That is: from the fear of His punishment or awe of His Majesty”

[Tayseer Sharh Jami as-Sagheer (2/293)]

Also, in the Hadith about the seven people Allah will shade on the Day of Judgment when there will be no shade but His shade, it mentions:

وَرَجُلٌ ذَكَرَ اللَّهَ فِي خَلاَءٍ فَفَاضَتْ عَيْنَاهُ

“…a man who remembers Allah in seclusion and his eyes are then flooded with tears…”

[al-Bukhari no. 6806]

Hafidh Ibn Hajr mentioned that al-Qurtubi said:

وفيض العين بحسب حال الذاكر وبحسب ما يكشف له ، ففي حال أوصاف الجلال يكون البكاء من خشية الله ، وفي حال أوصاف الجمال يكون البكاء من الشوق إليه

“The eyes flood in accordance to the situation of the one remembering Allah and in accordance to what is uncovered to him. In the situation when he remembers the descriptions of Allah’s Majesty, he cries out of the fear of Allah. In the situation when he remembers the descriptions of Allah’s beauty, he cries out of the longing for Him”

[Fathul-Baari]

Side Benefit: Does the above Hadith about the seven people include the women or is it specific for the men?

Hafidh Ibn Hajr rahimahullah said:

ذكر الرجال في هذا الحديث لا مفهوم له بل يشترك النساء معهم فيما ذكر ، إلا إن كان المراد بالإمام العادل الإمامة العظمى ، وإلا فيمكن دخول المرأة حيث تكون ذات عيال فتعدل فيهم . وتخرج خصلة ملازمة المسجد لأن صلاة المرأة في بيتها أفضل من المسجد ، وما عدا ذلك فالمشاركة حاصلة لهن

“The mention of men in this Hadith is not understood to be that, rather women are included with them in what was mentioned, except in what was mentioned of the just Imam which means the great leader [of a land]. Otherwise, a woman can be included in terms of if she has children and she is just between them. She also is excluded from the mention of being attached to the masjid because the prayer of a woman in her home is better than praying in the masjid. Besides that, they share [in the categories]”

[Fathul Bari]

And Allah Knows Best

Faisal Ibn Abdul Qaadir Ibn Hassan
Abu Sulaymaan