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wa-man yaʿmal mina ṣ-ṣāliḥāti min dhakarin ʾaw ʾunthā wa-huwa muʾminun fa-ʾulāʾika yadkhulūna l-jannata wa-lā yuẓlamūna naqīran
And whoever does righteous deeds, whether male or female, should he be faithful—such shall enter paradise and they will not be wronged [so much as] the speck on a date-stone.
— Ali Quli Qarai
Surah An-Nisa', Verse 124
124. "And whoever does deeds of righteousness, whether male or female, and is a believer, then these shall enter Heaven and they shall not be dealt with a jot unjustly."
It seems that the Arabic word /naqir/ is taken from the sense of 'pecking', and it is applied for the hole of a date-stone, as if it has been pecked. In the previous verse the meaning was about 'whoever does evil', and here, in this verse, it is about whoever does deeds of righteousness, the reward or retribution of both is based upon 'deed'. Thus, the factor of entering into Heaven is 'faith and good deed' not the race or claims or desires (which were mentioned in the previous verse).
All races, colours, nations and classes are equal for enjoying the grace of Allah.
Males and females are equal in reaching the spiritual virtues:
The reward of a believing good-doer is Heaven; and the righteous deeds are valuable even though they are small.