友達に言っているを聞いた (tomodachi ni itteiru wo kiita) would mean "I heard her saying to her friends". An important thing to note, this sentence entirely relies upon "her" and "I" being clearly defined object and subject respectively. Without this, the sentence reads "heard saying to a friend/s" and clearly respective positions are lost and it doesn't make much sense.
Watashi no tomodachi WA watashi ni itte.
tomodachi
tomodachi
Tomodachi
Best Friend (Shinyuu)
''ASEDREGALLIO'' IS BEST FRIEND IN JAPANESE MAN
My friend is a Pokemon freak! He told me his parents told him that Pokemon is nothing but Japanese animals.
Tokubetsu no Tomodachi
its him being nervous
In English, you can say 'I have a Japanese friend'.
Kochira WA anata no tomodachi desu.
Tomodashi ga ijiwaru desu.
Shinyuu [親友] means close friend or best friend.