I once read a hadith in an islamic forum but the reference for the hadith was not mentioned. The hadith sounds beautiful but ill love to confirm it’s authenticity before i quote it to anyone. The hadith goes like this, the Prophet(saw) said, ” When one of youdoes her best to be a good wife. The reward equals someone who is fasting all day and praying all night.” I’ll really appreciate your help.

Praise
be to Allah.

Perhaps
you are referring to the report that was narrated by at-Tabaraani in al-Mu‘jam
al-Awsat (6733), and Ibn ‘Asaakir in his Tareekh (43/348), via
‘Amr ibn Sa‘eed al-Khawlaani from Anas ibn Maalik, according to which
Salaamah the nurse of Ibraaheem, the son of the Prophet (blessings and peace
of Allah be upon him), said: O Messenger of Allah, you give the men all
kinds of glad tidings but you do not give the women such glad tidings? He
said: “Would it not please one of you that if she is pregnant from her
husband and he is pleased with her, that she will have the reward of one who
fasts and prays qiyaam for the sake of Allah?…” 

This
hadeeth is fabricated. It was narrated by Ibn al-Jawzi in al-Mawdoo‘aat
(2/274). He said: 

Ibn
Hibbaan said: ‘Amr ibn Sa‘eed is the one who narrated this fabricated
hadeeth from Anas; it is not permissible to quote it except by way of
highlighting an example of a fabricated hadeeth. And as-Suyooti agreed with
him in al-La’aali’, 2/175

End quote.
Silsilat al-Ahaadeeth ad-Da‘eefah wa’l-Mawdoo‘iyyah (5/76). 

It was
also narrated by Ibn Hibbaan in al-Majrooheen (1/238) and by Ibn
‘Adiyy in al-Kaamil (3/167) via al-Hasan ibn Muhammad al-Balkhi from
‘Awf al-A‘raabi from Ibn Sireen from Abu Hurayrah, who said: The Messenger
of Allah (blessings and peace of Allah be upon him) said: “If a woman
becomes pregnant, she will have the reward of one who fasts, prays qiyaam,
is devout, fears Allah and strives in jihad for the sake of Allah, may He be
glorified and exalted.” 

Ibn ‘Adiyy
said: It is munkar (odd). It was also narrated by Ibn al-Jawzi in
al-Mawdoo‘aat (2/274). Al-Albaani said in ad-Da‘eefah (5085): It
is mawdoo‘ (fabricated). 

There is
no need for this fabricated report, because we have the report that was
narrated by Imam Ahmad (1664) from ‘Abd ar-Rahmaan ibn ‘Awf (may Allah be
pleased with him) who said: The Messenger of Allah (blessings and peace of
Allah be upon him) said: “If a woman offers her five (daily) prayers, fasts
her month (Ramadan), guards her chastity and obeys her husband, it will be
said to her: Enter Paradise by whichever of its gates you wish.” 

Classed as
saheeh by al-Albaani in Saheeh al-Jaami‘, 660 

For more
information please see the answers to questions no.
96584 and 121557 

And Allah
knows best.