Can a woman who is observing ‘iddah following the death of her husband go out to pray Taraweeh and go to work?

 

My husband died 45 days ago, and I am used to going to pray Tarweeh in the mosque the during the month of Ramadan. Is it permissible for me to go to the mosque in order to offer the prayer before my ‘iddah is complete? Is it permissible for me to do my job in the grocery store? Please note that the grocery store is in the same house. Is it permissible for the one who visits the graves to eat from any tree that is planted in the graveyard?.

Praise be to Allaah.

Firstly: 

We ask Allah to reward you in your calamity and to compensate
you with something better. 

Secondly: 

The woman who is observing ‘iddah following the death of her
husband should not go out at night except in cases of necessity. Your going
out to pray Taraweeh is not a necessity. Based on that, you should pray
Taraweeh in your house. 

Thirdly: 

It is permissible for the woman who is observing ‘iddah
following the death of her husband to go out during the day to work, but
when night comes she has to stay at home. So there is nothing wrong with
your working in the grocery, so long as that is during the day only.  

Ibn Qudaamah (may Allah have mercy on him) said in
al-Mughni (8/130): The woman who is observing ‘iddah may go out for her
needs during the day, whether she is divorced or has recently lost her
husband, because of the report narrated by Jaabir who said: My maternal aunt
was thrice divorced, and she went out to harvest her palm trees. She was met
by a man who rebuked her and told her not to do that. She mentioned that to
the Prophet (blessings and peace of Allah be upon him) and he said: “Go out
and harvest your palm trees, for perhaps you will give charity from it or do
something good.” Narrated by al-Nasaa’i and Abu Dawood. Mujaahid narrated:
Some men were martyred on the day of Uhud and their wives came to the
Messenger of Allah (blessings and peace of Allah be upon him) and said: O
Messenger of Allah, we feel lonely at night; can we sleep in the house of
one of us and then in the morning we will go back to our own houses? The
Messenger of Allah (blessings and peace of Allah be upon him) said: “(Stay
together and) talk in the house of one of you, then when you want to sleep,
let each one of you go to her own house.” So she is not allowed to stay
overnight anywhere but in her own house, and should not go out at night,
except in case of necessity, because the night is the time when immorality
is most likely to occur, unlike the day, which is the time when most people
go about their needs and earn a living, and buy what they need. End quote. 

It says in Fataawa al-Lajnah al-Daa’imah (20/440): The
basic principle is that a woman should observe mourning in the house of her
husband in which she was when he died, and she should not go out of it
except in case of need or necessity, such as going to the hospital if she is
sick, or buying what she needs from the marketplace such as bread and the
like, if she does not have any one with her who can do that. End quote. 

As for eating from the trees that are planted in the
graveyard, there is nothing wrong with that, but you should note that the
Prophet (blessings and peace of Allah be upon him) forbade women to visit
the graves. This has been discussed in the answer to question number
8198. 

And Allaah knows best.