Saving to a has Many relation Issue

public function up() { Schema::create('students', function (Blueprint $table) {

        $table->engine = 'InnoDB';
        $table->increments('id');
        $table->string('name');
        $table->date('dob');
        $table->string('last_school_attended');
        $table->string('avatar')->default();
        $table->decimal('student_fees');
        $table->softDeletes('deleted_at');
        $table->timestamps();
    });
}

public function up() { Schema::create('fees', function (Blueprint $table) {

        $table->increments('id');
        $table->unsignedInteger('student_id')->unsigned();
        $table->string('payment_method');
        $table->string('bank_name')->nullable();
        $table->string('account_no')->nullabe();
        $table->decimal('balance');
        $table->decimal('amount');
        $table->date('date');
        $table->timestamps();

        $table->foreign('student_id')
            ->references('id')->on('students')
            ->onDelete('cascade')
            ->onUpdate('cascade');
    });

public function store(FeesRequest $request,$id)

{
    $student = Student::FindorFail($id);

    $fees = new Fees();
    $fees->student_id= $student;
    $fees->payment_method = $request['payment_method'];
    $fees->bank_name = $request['bank_name'];
    $fees->account_no = $request['account_no'];
    $fees->amount = $request['amount'];

    $fees = Fees::create($request->all());
    return $fees;
}

Route::post('fees/store/{id}',[ 'uses'=>'FeesController@store', 'as' =>'fees.save', 'middleware'=>'auth', ]);

public function rules() { return [ // 'student_id' => 'required ', 'payment_method' => 'required ', 'balance' => 'required', 'amount' => 'required', 'date' => 'required' ]; }

Problem now is how do i get the student's id through the form

     {!! Form::open(['method'=>'POST', 'route'=>['fees.save',$student->id]]) !!}
                                {{ csrf_field() }}

{!!Form::label('amount','Amount') !!} {!! Form::number('amount', null,['class'=>'form-control' , 'step'=>'any','placeholder'=> 'Amount']) !!}

 <div class="form-group{{ $errors->has('payment_method') ? ' has-error' : '' }}">
                                    {!!Form::label('payment_method','Payment Method')  !!}
                                    {!! Form::text('payment_method', null,['class'=>'form-control'  ,'placeholder'=> 'Amount']) !!}

{!!Form::label('bank_name','Name of Bank ') !!} {!! Form::text('bank_name', null,['class'=>'form-control' , 'placeholder'=> 'Name of Bank']) !!}

                                </div>

                                <div class="form-group{{ $errors->has('account_no') ? ' has-error' : '' }}">
                                    {!!Form::label('account_no','Account Number')  !!}
                                    {!! Form::text('account_no', null,['class'=>'form-control' ,'placeholder'=> 'Account Number']) !!}

                                   

                                <div class="form-group{{ $errors->has('date') ? ' has-error' : '' }}">
                                    {!!Form::label('date','Date of Payment')  !!}
                                    {!! Form::date('date', null,['class'=>'form-control']) !!}

                                   

PAY {!! Form::close() !!}

i can't seem to get the student_id through the form